diff --git a/stacks/observability/grafana-loki.yaml b/stacks/observability/grafana-loki.yaml
index 45514b48..43806f31 100644
--- a/stacks/observability/grafana-loki.yaml
+++ b/stacks/observability/grafana-loki.yaml
@@ -5,7 +5,7 @@ name: loki
 repo:
   name: loki
   url: https://grafana.github.io/helm-charts
-version: 6.19.0
+version: 5.48.0
 options:
   loki:
     auth_enabled: false
diff --git a/stacks/observability/grafana-tempo.yaml b/stacks/observability/grafana-tempo.yaml
index b576c6cb..2b8012fb 100644
--- a/stacks/observability/grafana-tempo.yaml
+++ b/stacks/observability/grafana-tempo.yaml
@@ -5,7 +5,9 @@ name: tempo
 repo:
   name: tempo
   url: https://grafana.github.io/helm-charts
-version: 1.13.0
+# Watch out for https://github.com/grafana/helm-charts/issues/3417
+# and https://github.com/grafana/helm-charts/pull/3503!
+version: 1.12.0
 options:
   tempo:
     server:
diff --git a/stacks/observability/jaeger.yaml b/stacks/observability/jaeger.yaml
index 334a14fe..50893db5 100644
--- a/stacks/observability/jaeger.yaml
+++ b/stacks/observability/jaeger.yaml
@@ -14,15 +14,8 @@ options:
     cassandra: false
   allInOne:
     enabled: true
-    extraEnv: []
-    service:
-      headless: true
-      collector:
-        otlp:
-          # http:
-          #   name: otlp-http
-          grpc:
-            name: otlp-grpc
+  storage:
+    type: memory
   agent:
     enabled: false
   collector: